#include <iostream>
using namespace std;
#include <string>
class Human{
    private:
        string name;
        int age;
    public:
        Human(string humanName,int humanAge):name(humanName),age(humanAge){
        }
        void IntroduceSelf(){
            cout<<"I am "<<name<<endl;
            cout<<age<<" years old"<<endl;
        }
};

int main(){
    Human firstMan("jack",25);
    firstMan.IntroduceSelf();
    Human firstWoman("lili",28);
    firstWoman.IntroduceSelf();
    return 0;
}
